Product Overview
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HI98191 is a professionally designed pH-ORP-ISE-°C meter with a portable, rugged housing and benchtop-level measurement accuracy. Its unique incremental ion concentration measurement method features built-in calibration and measurement programs for 17 different ions, with customizable and multiple ion concentration unit options. All measurement data can be automatically or manually temperature compensated.
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Large-capacity data storage, USB data interface, optional HI92000 data management software and dedicated data connection cable for further data transfer and analysis management.
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Backlit LCD large-screen display, on-screen calibration procedure prompts, automatic detection, automatic endpoint
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User-friendly interface, stability indicator, convenient operation, good cost-performance ratio
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Unique incremental ion concentration measurement method, customizable and multiple ion concentration unit options; mol/L, mmol/L, mg/L, mg/mL, ug/L, %, ppt, ppm, g/L, user-defined
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Automatic recognition of pH and ion calibration points, calibration expiration reminder, built-in 7 pH and 5 ion standard calibration points
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CAL CheckTM calibration status reminder to ensure the electrode and calibration status are optimal; GLP management function provides previous calibration information to ensure good data performance
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300 sets of manual and automatic data storage; USB data transfer, optional HI92000 data processing software enables PC-side data storage management.
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Equipped with a rugged thermoplastic carrying case with internal thermoplastic compartments to secure beakers, convenient for field on-site calibration and measurement operations. Automatic or manual temperature compensation ensures measurement accuracy
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Excellent waterproof performance IP67 rated, designed for field measurement
| pH | Measuring range | -2.0 to 20.0pH; -2.00 to 20.00pH; -2.000 to 20.000pH | |
| Resolution | 0.1pH; 0.01pH; 0.001pH | ||
| Accuracy | ±0.1pH, ±0.01pH, ±0.002pH | ||
| Calibration mode | 5-point pH automatic recognition calibration and 2 user-defined calibrations, built-in 7 pH standard calibration points (1.68pH, 4.01pH, 6.86pH, 7.01pH, 9.18pH, 10.01pH, 12.45pH) |
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| Temperature compensation | Automatic or manual temperature compensation, -20.0 to 120.0℃ (-4.0 to 248.0℉) | ||
| ORP | Measuring range | ±2000mV | |
| Resolution | 0.1mV | ||
| Accuracy | ±0.2mV | ||
| Relative mV offset range | ±2000mV | ||
| Ion concentration ISE | Measuring range | from 1.00E to the power of -7 to 9.99E to the power of 10 ion concentration units | |
| Resolution | 3 digits 0.01; 0.1; 1; 10 ion concentration units | ||
| Accuracy | Reading ±0.5% (monovalent ions) Reading ±1% (divalent ions) | ||
| Calibration mode | Up to 5-point calibration, 0.1, 1, 10, 100, 1000, 10000ppm concentration unit standard solutions selectable | ||
| Temperature | Measuring range | -20.0 to 120.0℃ (-4.0 to 248.0℉) | |
| Resolution | 0.1℃, 0.1℉ | ||
| Accuracy | ±0.4℃ (±0.8℉) (excluding probe error) | ||
| Other technical specifications | Electrode type | BNC interface type pH electrodes, ORP electrodes and ISE ion-selective electrode series | |
| GLP management function | Temperature compensation mode, calibration point settings, time, date and other related information | ||
| Data storage | 300 sets of measurement data storage (100 individual stored data) | ||
| Input impedance | 1012Ω | ||
| Power supply | 4x1.5V AA batteries | ||
| Auto-off setting | Set time: 5, 10, 30, 60 minutes or no auto-off | ||
| Operating environment | 0 to 50℃ (32 to 122℉), RH max 100% | ||
| Dimensions and weight | Meter dimensions: 185x93x35.2mm, meter weight: 400g | ||
Meter, HI72911B pH electrode with built-in temperature sensor and titanium metal housing, HI720191 thermoplastic carrying case, Chinese and English instruction manual
Case Studies
Municipal Wastewater Treatment · Hanna — Stock Configuration Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted Hanna properly configured on the existing plant, with the aim of covering portable and laboratory water testing with Hanna instruments.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the Hanna configuration has to involve selected by parameter set, accuracy and field portability.
Configuration
Supply and installation were organised through the stock channel: configuring from stock and delivered quickly. On site this meant selected by parameter set, accuracy and field portability, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is results available on site, reducing lab re-checks, and the readings are now used for process tuning.
Food & Beverage · Hanna — Stock Configuration Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was covering portable and laboratory water testing with Hanna instruments.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means selected by parameter set, accuracy and field portability.
What We Did
We took a stock channel approach — configuring from stock and delivered quickly. Delivery was built around selected by parameter set, accuracy and field portability, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — results available on site, reducing lab re-checks, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · Hanna — Stock Configuration Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from Hanna, focusing on covering portable and laboratory water testing with Hanna instruments.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The Hanna specification must therefore cover selected by parameter set, accuracy and field portability.
Delivery Approach
Delivery was handled as the stock channel — configuring from stock and delivered quickly. Execution centred on selected by parameter set, accuracy and field portability, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — results available on site, reducing lab re-checks, with confidence in this measuring point improving markedly.
Power & Energy · Hanna — Stock Configuration Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is Hanna; the focus is covering portable and laboratory water testing with Hanna instruments.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with selected by parameter set, accuracy and field portability.
Implementation
The scope ran through the stock channel: configuring from stock and delivered quickly. Technically it hinges on selected by parameter set, accuracy and field portability, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means results available on site, reducing lab re-checks, which cut the workload on the site maintenance team.
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